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1 Untitled Document Eco Photo Cell resp Use the information below to answer the following question(s). The drawing below shows a field habitat. 3. An increase in which atmospheric gas would most likely increase the rate of photosynthesis? A. carbon dioxide B. hydrogen C. nitrogen D. oxygen What is the main source of energy in the field habitat? A. the sun B. the plants C. the butterfly D. the soil 4. The food web below shows the relationships among some of the organisms found in a desert environment. Use the relationships in the food web to answer the following question(s). 2. What is a primary role of decomposers in an ecosystem? A. They eliminate matter by taking nitrogen from the ecosystem. B. They eliminate matter by taking phosphorus from the ecosystem. C. They cycle matter by returning carbon and other matter to the ecosystem. D. They cycle matter by returning oxygen and other matter to the ecosystem. Which of these shows the relationship between the cactus and the bird? A. producer-consumer B. predator-prey C. mutualism D. commensalism page 1

2 5. Use the diagram of the marine food web below to answer the following question(s). 7. The picture below shows an energy pyramid. What will most likely happen to the foxes and the wolves if the rabbits are removed? A. The foxes will eat more wolves. Which of these best describes the relationship between the phytoplankton and zooplankton? A. producer-consumer B. mutualism B. The foxes will eat fewer wolves. C. There will be more foxes and wolves. D. There will be fewer foxes and wolves. C. parasite-host D. commensalism 6. The bacteria that cause tetanus can survive in a puncture wound that has healed on the outer surface of the skin. Through what process do these bacteria acquire the energy they need to survive? A. aerobic respiration B. anaerobic respiration C. chemosynthesis D. photosynthesis Eco Photo Cell resp 25 page 2 Untitled Document

3 8. Which model correctly shows energy flow in a food chain? 10. A marine food web is shown below. A. B. C. D. Which chart correctly shows three of the organisms according to their roles in cycling matter in the marine food web? A. B. C. D. 9. During photosynthesis, energy from the sun is trapped in A. chemical bonds. B. the nuclei of atoms. C. enzymes. D. Golgi bodies. Eco Photo Cell resp 25 page 3 Untitled Document

4 11. The framework of organic molecules essential to all organisms is composed mainly of carbon atoms. Which processes are involved in the cycling of carbon within an environment? 14. The picture below shows the energy flow through a meadow community. A. Photosynthesis and respiration B. Evaporation and condensation C. Transcription and translation D. Diffusion and transpiration Which statement best describes the flow of energy as it passes through the organisms in the pyramid? A. Energy flows through the organisms from bottom to top and increases at each level. B. Energy flows through the organisms from bottom to top and decreases at each level. 12. In terms of ATP production, which process results in the most stored energy? A. aerobic respiration C. Energy flows through the organisms from top to bottom and increases at each level. D. Energy flows through the organisms from top to bottom and decreases at each level. B. anaerobic respiration C. fermentation D. photosynthesis 15. Which molecule supplies the energy for cellular functions? A. ATP B. oxygen C. DNA D. water 13. Lichens are symbiotic organisms made of green algae and fungi. What do the green algae supply to the fungi in this symbiotic relationship? A. carbon dioxide B. food C. protection D. water 16. Which of the following gases do plants use in photosynthesis? A. hydrogen B. oxygen C. carbon dioxide D. carbon monoxide Eco Photo Cell resp 25 page 4 Untitled Document

5 Photosynthesis The following equation represents the process of photosynthesis in green plants. What happens to most of the light energy during photosynthesis? A. It is transformed into heat energy. Which gas is forming in the test tube shown above? A. carbon dioxide B. hydrogen B. It is transformed into chemical energy. C. It is changed into carbon dioxide. D. It is changed into oxygen. C. oxygen D. nitrogen 18. During photosynthesis in plants, what is the source of the carbon in the sugar molecule (C 6 H 12 O 6 )? A. carbon dioxide in the air B. carbon monoxide in the air C. carbon particles in the soil D. carbon particles in water 19. The first stage of photosynthesis in a chloroplast is A. light-dependent. B. temperature-dependent. C. glucose-driven. D. ATP-driven. Eco Photo Cell resp 25 page 5 Untitled Document

6 21. Use the diagram to answer the question. Gases and Photosynthesis 23. The following diagram shows an incomplete equation for cellular respiration. Glucose + Oxygen Carbon Dioxide + Water +? What information will complete this equation? A. Food B. Wastes C. Energy D. Chlorophyll The diagram shows the gases that enter and leave a plant during the process of photosynthesis. Which gases do arrows 1 and 2 represent? 24. A diagram representing the relationship between photosynthesis and cellular respiration is shown below. A. Arrow 1 is nitrogen, and arrow 2 is oxygen. B. Arrow 1 is oxygen, and arrow 2 is nitrogen. C. Arrow 1 is oxygen, and arrow 2 is carbon dioxide. D. Arrow 1 is carbon dioxide, and arrow 2 is oxygen. 22. Which example shows a relationship between a living thing and a nonliving thing? A. An insect is food for a salmon. B. Water carries a rock downstream. C. A tree removes a gas from the air. D. A flower makes food for a butterfly. The numbered boxes in the diagram represent which of the following? A. water; nitrogen B. nitrogen; oxygen C. oxygen; carbon dioxide D. carbon dioxide; water Eco Photo Cell resp 25 page 6 Untitled Document

7 25. Cells obtain energy from food by aerobic or anaerobic respiration. Which of the following compounds is produced by anaerobic respiration but not aerobic respiration? A. Water B. Oxygen 26. If energy is needed to move materials into or out of a cell, what is most likely occurring? A. active transport B. passive transport C. osmosis D. diffusion C. Glucose D. Lactic acid Eco Photo Cell resp 25 page 7 Untitled Document

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